CVE-2021-39917
Severity Score
6.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
An issue has been discovered in GitLab CE/EE affecting all versions starting from 12.9 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2. A regular expression related to quick actions features was susceptible to catastrophic backtracking that could cause a DOS attack.
Se ha detectado un problema en GitLab CE/EE afectando a todas las versiones a partir de 12.9 anteriores a 14.3.6, todas las versiones a partir de 14.4 anteriores a 14.4.4, todas las versiones a partir de 14.5 anteriores a 14.5.2. Una expresión regular relacionada con las características de las acciones rápidas era susceptible de un retroceso catastrófico que podía causar un ataque DOS
*Credits:
Thanks @hashkitten, for reporting this vulnerability through our HackerOne bug bounty program
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-08-23 CVE Reserved
- 2021-12-13 CVE Published
- 2023-10-30 EPSS Updated
- 2024-08-04 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-697: Incorrect Comparison
CAPEC
References (2)
| URL | Tag | Source |
|---|---|---|
| https://gitlab.com/gitlab-org/gitlab/-/issues/338486 | Broken Link |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39917.json | 2021-12-16 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Gitlab Search vendor "Gitlab" | Gitlab Search vendor "Gitlab" for product "Gitlab" | >= 12.9.0 < 14.3.6 Search vendor "Gitlab" for product "Gitlab" and version " >= 12.9.0 < 14.3.6" | community |
Affected
| ||||||
| Gitlab Search vendor "Gitlab" | Gitlab Search vendor "Gitlab" for product "Gitlab" | >= 12.9.0 < 14.3.6 Search vendor "Gitlab" for product "Gitlab" and version " >= 12.9.0 < 14.3.6" | enterprise |
Affected
| ||||||
| Gitlab Search vendor "Gitlab" | Gitlab Search vendor "Gitlab" for product "Gitlab" | >= 14.4.0 < 14.4.4 Search vendor "Gitlab" for product "Gitlab" and version " >= 14.4.0 < 14.4.4" | community |
Affected
| ||||||
| Gitlab Search vendor "Gitlab" | Gitlab Search vendor "Gitlab" for product "Gitlab" | >= 14.4.0 < 14.4.4 Search vendor "Gitlab" for product "Gitlab" and version " >= 14.4.0 < 14.4.4" | enterprise |
Affected
| ||||||
| Gitlab Search vendor "Gitlab" | Gitlab Search vendor "Gitlab" for product "Gitlab" | >= 14.5.0 < 14.5.2 Search vendor "Gitlab" for product "Gitlab" and version " >= 14.5.0 < 14.5.2" | community |
Affected
| ||||||
| Gitlab Search vendor "Gitlab" | Gitlab Search vendor "Gitlab" for product "Gitlab" | >= 14.5.0 < 14.5.2 Search vendor "Gitlab" for product "Gitlab" and version " >= 14.5.0 < 14.5.2" | enterprise |
Affected
| ||||||